Hagen, D R Reproduction in domestic and feral swine. II. Interrelationships between fetal size and spacing and litter size. [electronic resource] - Biology of reproduction Dec 1980 - 929-34 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0006-3363 Standard No.: 10.1095/biolreprod23.5.929 doi Subjects--Topical Terms: Animal Population Groups--physiologyAnimalsAnimals, Wild--physiologyBody WeightFemaleFetus--anatomy & histologyGestational AgeLitter SizeMalePregnancySwine--physiologyUterus--anatomy & histology